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What are some commonly known facts that are too bizarre for you to believe to be true? (lemm.ee)

submitted 1 year ago by [email protected] to c/[email protected]

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For me it is the fact that our blood contains iron. I earlier used to believe the word stood for some 'organic element' since I couldn't accept we had metal flowing through our supposed carbon-based bodies, till I realized that is where the taste and smell of blood comes from.

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[–] [email protected] 1 points 1 year ago (1 children)

Everything is toxic in sufficient amounts. Even water.

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

Cobalt is very toxic. Far worse than lead. But yet bound up in this one molecule, that looks like this:

it becomes biologically necessary for all animals. How does it get there? Is all the vitamin B12 made already and it stays in circulation, or is there some plant that selectively fetches cobalt from the ground and builds this thing that keeps us all alive?